■ West Augustine: periodic road closures and detours in the area surrounded by King Street to the north; 15th Street to the south; Duval Street on the east and St. Johns Street on the west due to utility and roadway improvements (through June).

■ Cavino Road from Lewis Speedway to Volusia Street: lane closures and minor delays due to water line replacement.

The following state roads in St. Johns County will be under construction this week:

■ S.R. 13 at Sixteen Mile Creek: Daytime lane closures today through Friday to paint roadway markings and complete final construction activities. The speed limit in this area has been reduced to 40 mph.

■ S.R. 13 from Moremen Road to a half of a mile south: Daytime lane closures from 8:30 a.m. to 4 p.m. today through Thursday to replace drainage pipes under driveways.

■ S.R. 16 from the Clay County line to San Marco Avenue: Daytime lane closures today through Thursday while crews repaint the roadway markings.

■ S.R. 207 at County Road 305: Possible daytime lane closures today through Friday for delivery of equipment and materials to construct a multi-use trail from the end of the existing trail to Armstrong Road.

■ S.R. 312 at Sgt. Tutten Drive and at Plantation Island Drive (Harbour Island Community): Daytime lane closures in both directions from 8:30 a.m. to 3:30 p.m. today through Friday for work related to the reconstruction of turn lanes and the installation of new traffic signals at these intersections.

■ S.R. A1A — Summer Haven Bridges (just north of Marineland): No lane closures are scheduled for this week. Motorists should drive with caution through the construction area. The speed limit in this area has been reduced to 40 mph.

■ S.R. A1A from the Flagler County line to Avenida Menendez: Daytime lane closures today through Thursday while crews repaint the roadway markings, excluding the construction zone in Summer Haven.

■ S.R. A1A from the Flagler County line to Summer Haven (sea wall): Possible daytime lane closures today through Friday to allow for delivery of equipment and materials.

■ U.S. 1 at the San Sebastian River Bridge from Saragossa Street to King Street: Possible nighttime lane closures from 7:30 p.m. to 6 a.m. in both directions today through Friday.

■ U.S. 1 at Vaill Point Road: One northbound lane is closed as well as the entrance to Vaill Point Road from U.S. 1 while crews for St. Johns County replace a pipe on the east side of the Moultrie Creek Bridge. These closures are expected to continue until mid-January.